this mf thinks we still have medieval walled cities, like dude, you can literally just... walk out of the city. I mean, yeah, you can indeed disrupt logistics, but there's a pretty big gap between "trucks can't get in to deliver supplies" and "entire population is trapped inside of the city". Also railway transport isn't real I guess
also love the idea of completely destroying supply routes into the city with... backhoes and gravel. I guess city folk don't have any construction equipment of their own to clear and repair their roads. Also I guess the roads are just going to be conveniently completely empty for however many hours it takes you to block them, because, uh...